稀少
发表于 2025-3-21 17:14:25
书目名称Crop Pests in the UK影响因子(影响力)<br> http://impactfactor.cn/if/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK影响因子(影响力)学科排名<br> http://impactfactor.cn/ifr/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK网络公开度<br> http://impactfactor.cn/at/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK网络公开度学科排名<br> http://impactfactor.cn/atr/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK被引频次<br> http://impactfactor.cn/tc/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK被引频次学科排名<br> http://impactfactor.cn/tcr/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK年度引用<br> http://impactfactor.cn/ii/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK年度引用学科排名<br> http://impactfactor.cn/iir/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK读者反馈<br> http://impactfactor.cn/5y/?ISSN=BK0240225<br><br> <br><br>书目名称Crop Pests in the UK读者反馈学科排名<br> http://impactfactor.cn/5yr/?ISSN=BK0240225<br><br> <br><br>
显赫的人
发表于 2025-3-21 23:13:23
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Peristalsis
发表于 2025-3-22 02:06:37
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entitle
发表于 2025-3-22 04:33:27
are described here: the rosy apple aphid . (Passerini)), the rosy leaf-curling aphid . (Walker)), the green apple aphid . Degeer) and the apple—grass aphid . (Walker)). The fifth species, the woolly aphid, is described on page 78.
sigmoid-colon
发表于 2025-3-22 11:27:06
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滑动
发表于 2025-3-22 14:57:10
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滑动
发表于 2025-3-22 19:34:09
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沉思的鱼
发表于 2025-3-22 23:17:15
Rechtsnormen und technische Regelwerke,ost important species frequently cause much crumpling of the leaves and stunting of the young shoots during spring and early summer. Severe attacks may result in premature leaf-fall and small fruit. Both foliage and fruit may become sticky with honey-dew excreted by the aphids and dirty with sooty m
badinage
发表于 2025-3-23 03:18:47
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砍伐
发表于 2025-3-23 08:09:34
Rosemarie Karger,Frank Hoffmann curled and blistered, and the plants become so stunted that they fail to heart (Fig. 9.4(c)). The honeydew excreted by the aphids forms a sticky layer over the leaves to which dust and cast aphid skins adhere; this alone can seriously reduce the value of the crop.